A new report from market intelligence firm IDTechEx highlights hydrogen as a promising option for the future of aviation, estimating the hydrogen airplane market to reach US$28.4 billion by 2045. However, the adoption of hydrogen for commercial flights faces challenges, including the need for infrastructure investment at airports to handle liquid hydrogen. To kick-start the hydrogen-air travel market, key airports like LAX, ATL, and JFK are identified as potential hubs for hydrogen-powered flights in the US. The report points out that popular routes like LAX to LAS and JFK to LHR could benefit from hydrogen power, with the latter potentially being the starting point for a hydrogen-powered network in Europe. Despite the potential, there are significant technical challenges to overcome, such as certification, fuel cell technology, motor power, and hydrogen storage. The IDTechEx report 'Sustainable Future Aviation 2025-2045' offers a detailed analysis of hydrogen and electric flight technologies, providing forecasts on industry growth, plane sales, revenue, battery demand, and motor demand. The report emphasizes the importance of strategic investments in hydrogen infrastructure at key airports to overcome challenges and propel the industry forward.